Alphabet and numeral repeat printing mechanism



July 8, 1952 E. J; RABENDA ETAL 2,

ALPHABET AND NUMERAL' REPEAT PRINTING MECHANISM FiledOct. '7, 1948 '9 Sheets-Sheet 1 law/593947138044 E. J. RABEND ETAL ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. 7, 1948 July 8, 19 52 9 Sheets-Sheet 2 iNVEN ORS EdwardJiabenda fia/plzffgge BY Horace}. aw/e Q74).

ATTORN July 8, 1952 E. J. RABENDA ETAL ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. 7, 1948 9 Sheets-Sheet 3 INVENTORS EdwardJ/fabenda Ralph [.Page BY lav/ace 8 earr/e 4 wof ATTORN y 8, 1952 E. J. RABENDA ETAL v 2,602,394

ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. 7, 1948 9 Sheets-Sheet 4 TEE-"'- INVENTORI: Edward J2 Bahama awf ATTORNE July 8, 1952 E. J. RABENDA ETAL 2,602,394

ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. '7, 1948 9 Sheets-Sheet 5 TEE- July 8, 1952 E. J. RABENDA ET AL 2,602,394

' ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. '7, 1948 9 Sheets-Sheet 6 lFfl/p/I 5. Page BY Horace aaearne ATTORNEY E. J. RABENDA ETAL ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM July 8, 1952 9 Sheets-Sheet 8 Aim Filed 001.. '7, 1948 M h s fi CH; M R ..|L. a 9 o\ 9 w H R. M m w 1 1:; FL F I b b m b b b b 3 F- Fin milm R R we H w 4 Z W m z m 3 July 8, 1952 Y E. J. RABENDA ETAL ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Filed Oct. '7, 1948 9 Sheets-Sheet 9 3 2S 5 Q E:

43 :3 Ass :3 EE :3 59 3 5 :3 5 s: 56 26 -5 was: a k Q $5 SE; Q52 SE Q Q .cycle.

Patented July 8, 1952 I I .I 2,602,394

UNITED STATES PATENT OFFICE 1 ALPHABET AND NUMERAL REPEAT PRINTING MECHANISM Edward]; Rabenda, Ralph E. Page, and Horace S. Beattie, Poughkeepsie, N. Y., assignors to Inter- .national Business Machines Corporation, New

York, N. Y., a corporation of New York Application October 7, 1948,;Ser'ial No. 53,332 Claims. (01. 101-93) This invention relates to printing mechanisms and'zone impulses, useful for digit and alphabet and more particularly to the type which is character selection. j adapted to print invariable data generally repre- Another feature, which pertains to the specific senting identification or descriptive data which electrical arrangement is to provide an electrical is to 'be repeatedly printed in accordance with 5 circuit network from said character emitter hava previous selection. 1 ing wire connections from the digit segments In certain types of accounting machinesjof 1-9 of said emitter to digit exit plug hubs or which the record controlledtypeis an illustrative sockets, an'dwire connections from the O, X, R typefit is desirable to print at times identification zone segments of said emitter to alphabet exit or descriptive data. such as Total, Account No. plughubs or sockets which receive not only the 1248,] Balance Forward, or other such similar digit impulses, but the zone impulses as well. In words or abbreviations. Such printing can be providing this arrangement it is desirable to controlled by the record cards but to avoid the direct theizone impulses to the alphabet exit expenditure of columns of, the record for this plug hubs by an electrical relay which prevents purpose it is desirableto have 'su cli 'printing conerroneousimpulses from being transmitted by trolled, by an, auxiliary device se'ti up in "the back circuits. 7 A further feature consists of a circuit arrangemachine. 7

.The present invention concerns the provision ment whereby impulses from the digit exit plug of a device settable in the machine by the 'ophubs and alphabet exit plug hubs are directed to erator which provides a control for a'printing the electricalcontrol instrumentalities oi 'the mechanism to print selected identification data printing mechanism directly or selectivelyby and the provision of selecting means to call such the-provision of a selector relay." Asillus t'rative device into operation at desired times. j or the use of the latter a selector relay iscalled One feature of the present invention isthe into operation whenever a-total'is taken, and thus rovision of a control device which iscapable only identification data-is printed when a'total oif potentially controlling a printing mechanism ista-ken. I to select alphabet and numeral} type to. print Other objects o'f the. invention will be pointed identification data. I 1 outthe following" description and-claims and ;;Another feature of the invention pertains to illustrated in theaccompanying drawings ,'which the provision of a setup means settablebyjth'e ydisclose', by way of'example; the principle of the ongmtqrto t ndr control pr said device, invention and the best mode, which has been the Qdesired type of the printing'mechanism contemplated, of applying that principle.

wherebyselected characters; either numerals or I I th drawings: v v alphabet, are printed bythe printing mechanismigs. la'and-lb when assemb1ed with Fig 1a A further feature of the invention .is to pro- 'onthe' top shows the construction of th im videaselectivearrangement whereby-said charprovednumeralfland alphabet printing mechaacter'selecting .device'is-calledinto operation ior i I a v H each cycleof machine nemi onr 9 F 1 lPi g.2 is a detail of an overthrow preventing cycles of machine operation.;;; f 1 mechanism a V W As an explanation o th rl s immed icatl'lrg, Fig. 3 is a view in side elevation showing the by means of the selective, arrangement the same 7 'intergearin f idriving t shaft ofthe identification .data may be: printed fpr eachl item m e h n Synchronism y Y entering cycle of. an accounting machine, or ifv so i Fig; 4'is a'sectional view taken on'the-line 44 desired called into operation for each total taking 'q a V J 5 I Fig. 5 is a sectional view taken on the line 5*'5 The present character selecting. devi constructed as electrical or mechanica but it is preferable to employ anelectri of the invention to be able to control a and numerical*printlngm 1s knownformg phabetandnumeraltype. r 1

T and 3Zrfwhen joined "together 1n the ame d" represent" an electrical diagram g it heljelectri cal circuits "when the invenmbodied a lustrated in an electrical item and total taking'cycle has secured. thereto a gear 46 (Figs. 3 and 4) which drives a gear 4! secured to the printing impression drive shaft 38 to rotate the latter at a uniform speed of rotation one and a half revolutions for each revolution of drive shaft 22. Reference numeral 39 designates the type selecting drive shaft which ro tates two and one-twelfth revolutions for each operating cycle. At times shaft 39 is' driven with a uniform speed of rotation substantially synchronous with the drive shaft 38, but at other times the speed of rotation given to shaft 39-is To the side of the gear 40 and at the periphery thereof there are; secured segmental bearing plates 42, 43. The plate 43 is provided with bearing slots 44 and plate 82 with bearing slots 45. Slidably mounted in such'bearing slots is a cam follower plate 56. vHence, plates 42, 43 provide th bearing or support for the slidably mounted cam follower plate 46. Obviously, since the gear 40 carries in this manner the cam follower plate Mi, the latter rotates with the gear 45 about the shaft '22 in, the same counterclockwise direction (Fig.3).

-Cam follower N rollerfil, i ltting in a cam racefiB of a cam plate 43 whichis fixed by studs 53 to a stationary frame plate5I- The cam follower plate 46 has an extension 52 (see Figs. 3 and 6) which carries a stud 53 (Figfl) V andcarried by the stud 53 is a square block 53 fitting between plates 55 secured to one sideof a gear 56 Sofar itis obvious thatdrive shaft 22 drives the gear 45 and through theconnecting-cam follower plate 46 the'gea'r away from or. towards the center .offthe shaft 22 and to do this without interference the'plat'e 45 has a longitudinal slot 51 (Fig. 6')' encircling .the shaft 22. Also in view of the movement given The -gear 56 Figs.f3 and '5), through the as v 59, drives the type selecting drive shaftv 3'9 and .thus. the latter through the variable gear drive just described is driven at a variable speed through the operating cycleof the printing mechanism. For the proper operation of themach'ine disclosedherein main drive shaft 22 isdriven counterclockwise as viewed Fig. 3.

. k A group .ofjtype. consisting of three alphabet type and one humera jfvlille.is;21.1166;tidied, fol :each impulse l 9 asl sh wnierh ftween' 120 and270 and or each fou rmting type (4T) past the printing line v(see Fig.

At about 270 the'sp'eed'o'f rotation of the s ft 39 starts to decrease so as to present four pri'fitplate 46 carries a cam follower l,

sense of Fig.7; Shaft 56 is driven. The foam race 48 is so designed that the camfollower plate may be moved "531F313 .7 the ype is; it- "the X impin :typerK; willrrbe 4 ing type past the printing line for 27. Between and 270 of the cycle of operation the roller 53 will cooperate with a substantially concentric portion of the cam race 48, and since there will be no movement of cam follower plate 45 during this-period gear-i515 will be driven counterclockwise at the same speecl'of rotation as'the gear 40. When the cam follower roller ll enters an eccentric cam portion between 270-300 the speed of rotation, of the shaft 39 is reduced so that four printing type are presented for 27. Between 30034 5 the'eccentric part of cam race 48 so reduces;- the speed of'shaft 39 that for each 15 only one printing tooth (1T) will pass by the printing point. '-At 300 the alphabet type which would be selected by the O impulse will be adjacent the printing line. At 315 of the cycle of operation the alphabet type of the selected group selected by the X impulse will be in position for printing at 330 the alphabet type selected by the R impulse will bein a position to print and at 345" the numeral type of the selected group will be in position to effect an imprint therefrom. Therefore, the slowing down of the speed of the rotation of shaft 39 is provided to selectively effect printing from the selected alphabet or numeral type of theselected group. 4

During the time that the cam follower roller 41 enters the very eccentric cam portion of cam race 48 between 3.0034=5, the cam follower plate 46 under control of the cam race 48 moves outwardly (Fig. 3) with respect to the centefof the shaft 31,thus, rotating the gear 55' in a clockwise direction opposite to the counterclock wise direction of rotation of the gear 45". ---This will result in diminishing the speed of rotation ofthe gear 55 and shaft 38 during thetrans' mission of the'O, 'X andR. zone [In-pulses as just described. Y

'After this reduction in speed of gear 56 the follower roller 4! then enters the cam portion after 345 and the latter is so"designed as.to move plate 45 inwardly (Fig. 3) towards the center of shaft 22 to cause gear- 56' to rotate counterclockwise at a speed increased withrespect to the gear 40 This increase in speed is initiated at 345 of the operating'fc'ycle and; continues on over to the next operating cycleto 120 thereof. This increase in speed-during such portionsof successive machine cycles ensues to makefup for the previous-relative displacement of gear 56 so that at 1 20? of the cycle-thegears 40 and 56 and p'arts d'riven'thereb'y are always at the'san'iefrelative position; v

Alphabet printing mechanism The machine is preferably providedwith Balp'habet type and impulse-means for selectingsuch type so as to print, aside'from numerals,- letters making up words or abbreviations; V v The printing mechanism shown hereinvisr also shown and described in 'the patent to BE. Page and H; s. Beattie, no. 2;438-,071, datedMarch'lfi,

The alphabet type are selected by impulses accordingto'the code shown in Fig '7. 'Iheparticular O; X'and --R impulse determines which of he several ty'peof a-group'selectedby an impulse fI -Q will be printed. For example, if the impulse is '2 and ho-pilot iinpulse'is utilized; either. the O, ,K 'or LR.'irgipulse; the digit 2 will be p rinted 'lf "is also"at 0suchfinipulse:willvselect selec eda if t iiim ul V acogsog:

i Each impulse 1+9 selects a, group .ofthree none; numeral type and also a numeraltype. ASeWill.

be-ilater described, if a numeral ,atype: is.. v to. be

selectedfor .printing;;the printing impression will;

have been printed and .thi'szis effectedunder con,- trol of the 0,;X and R impulses.

If the impulse is 9 aoneaprmtmsgenera;

-(Fig.:;1a) will be rotated counterclockwise until the Qtypeis at the printing line andvthen'the Printing wheel 60 willbe rocked by. the N pulse.

effectthe printing impression. It'will be noted that if the impulse is R then under contro-Lof,

this impulse the printing wheel will be rocked earlier than for printing the-digit 9 to take 'an imprint from the I type. The. X impulse will rockzthe printing wheel 60! to take an imprint. still earlier-to print R and the. impulseOl even:

still earlier to print Z. ,1.

--..'Ihex same principleofpperation. provided;

for. selecting the; type of the other. groupsof alphabet type and theope'ration of the printing: mechanism for effecting type selectioniand print+.

ingimpressions will now be, described detail. sThe impulses are transmitted in the order. 9,; 8, 7. 1, .O X.andR.,-. 1-. L

When: the 19-1 impulses are transmitted, acircuit;-is closed. to a printing control magnet jBl (Fig.lbland for each column there is a-printing contro1,.-ma gnet. In ,the present machine by mechanisms to be subsequently described. in: de-j-z tail; this initiation is effected by the actuationlof.

an operating link.63;.(Eig. la).;ata;differential. time. For selection of type groupsdetermined by the impulses 9l,-such operating link-63 is shiftedto the left at difierentialtimes between .135-270" of theoperating cycle as is shown ;in the, timing diagram (Fig. 9). Itwill also be recalled that during this time shaft 39 is being rotated at a uni-. form speed of rotation. The shifting of.the operatinglink 63 at differential times is providedherein to transmit a differentiallytimedzmechanical impulse to trip the type selecting clutchshown in- Fig. 1a, now to be described in .detaiL. .For each printingorder there is piyotedon a rod 66 a triple arrnmember'consisting of arms 64, 65 and a clutch release armfil.

' Shaft 39 has secured thereto a tube 68 whichis fluted transversely along itsperiphery to provide clutch notches 69. Tube 68 constitutes the driving clutch member. Encircling. the clutch tube 68 is a plurality of gears 10, therebein'g one gear for each order of the printing I mechanism. For mounting the gears 10 on the clutch tube 68, each gear'has' integral therewith a flange 12. I To provide for the lateral spacing between the gears 10, the gears are guided by guide slots H formed in guideblocks 13, l l and. 15. By such spacim members the gears 10 are separated to allow independent rotation and to also locate aclutch pawl 16 which is pivoted on therelatedgearito cooperate with theclutch'release arm 61: The clutch release arm 61 normally holds the clutch pawlflfi in suchpositio-n that its tooth 'l'l is out of en-gagementwithany of the clutch notches B9 of; the clutch tube 68. When the iclutchrelease arm 61 is rocked as a resultuof the actuation of the operating link-,63at; a-difierential time the clutch is engaged becausea spring 'lllattached to, clutch pawl 16 will rock thelatterin order that the clutch tooth 11 will engage; a clutch notch 69 determined-bythe differential time the.

operating, link 63 is actuated. The above described clutch, is .the printing type yselecting clutch andcauses the differentialrotation of the printing 'Wheel, 60, since the gear 10 and the; printing teeth ofthe type carrying wheel 60 are,

intergeared.

Fig s .,1a and 1b show the arrangementof the printingdevices for a single order and the ma:

chine is preferably provided with duplicate devices forprinting. a plurality of characters If the operating link 63 wasshifted at about 138-as a result of the 9 impulse, the clutch re lease arm '6! would be rocked at this time and pawl 16 wouldbe released and rocked by spring T8'so that clutch tooth 11 engages a clutch notch 69 andprinting wheel 60 will thereafter continue toprotate to such position as to successively pre-- sent the characters Z, R, 1 and 9 of the group selected by the 9 impulse (see Fig. 7) to the printing line between 333-345. The differential time at. whichthe operating link 63 is actua'ted determines the extent of counterclockwise rotation ofv theprinting wheel 60 necessary to select, a group of type for printing between 3309-3 159. After the predetermined extent of rotation of the printing wheel 60 has been effected and the printing impression has been effected, withthe type selecting clutch still engaged, the

printing wheel 60. will continue to rotate until the free end of the clutch pawl '16 strikes the clutch release arm 61 which, in the meantime, has been brought to; its normal ,position, by means ofa compression spring 19 (Fig. la). When such disengagement. iseffected theprinting wheel 60 is at the normal position shown in Fig. la.

Each printing wheel 60 is carried by an arm-8| loosely pivoted upon a rod 82 and provided with a rearwardly extending follower extension 84 which is operated by a cam projection -83 of a cam disk 85 which constitutes a driven member of a printing clutch. 7

Shaft 38 rotates a clutch tube 86 fixed thereto and likewise encircling the clutch tube 86 is the driven clutch disk 85 upon which is pivotally mounted a clutch pawl 81. Clutch disk BE-and parts carried thereby are guidedsimilarly to gear Ill. Associated with the. clutchpawl 8'lisa clutch release arm 88. .NWhen the clutch engagement is effected between the clutch pawl ;81 and one of the clutch notches of the clutch tube 86, the disk 85, will-be rotated in a clockwise direction;

whereby'the cam projection, 83 will cooperate with the followerextension 84 to rockarm 8| about the rod 82 against the actionof the return spring ,89. The engagementpofthe clutch now being described is eifected at; difierentialtimes when the printing control magnet 6| foreach order is again, energized under control of,;the

O,XandR impulses. s At the present time it should be understood that while the O, X and Rimpulses are being transmitted-the clutch release arm 88 will be rocked. to clutch release position. As a result of this clutch engagement, the cam extension 83 approaches the follower extension 84 at the time shaft 39 is rotating at a diminished speed be tween 33( )345, to present the type of selected group successively to the printing line. Thus, the particular type which is to be selectedfrom theselectedgroup for printing will depend upon the differential timethat the;pr inting control magnet 6| receives a second impulse and, therefore, the time at;which; the printing clutch is engaged. 7 If the. O .impulsecis transmitted the -.I H to support'the link 63 at one end and guide .9 The, link 63, referring to Fig. 1a, is. .slidably mounted in guide slotsformed in a support plate "its. movement, and referring to Fig. 1b the other end-50f thelink' 63 isdependently hung by arm- 110 that pawl I06 .is effective for latching the related member I I if the associated member I I0 has been .I I 3;which'arm has a cam follower extension I I8. jA'compression-spring I I4 fitting in a'spring support and guide block for arm H3 urge's'the link .:.63 to .the. left and when such springis effective for action under control of a cam I25 it serves as the source of mechanical impulse transmitted to-link 63 at a'differential time'to rockthe clutch releasearm 'B'Itoriniti'ate type ,groupselection.

{Recalling now that-each 'cam'I 00 has camacon- .tours of, three different heights, it should-he ob-.

-'served that when member I I0 is at a position determined by: the low portionofthe cam I00, the shoulder, I08abuts lug I09 toblock: the link 63 from movement to the left, urged by-compression of thespringl I4. In attempting to do so lug I09 will bear against the shoulder I08 and urge the "member .IIO clockwise; which movement is restrained by the cooperation of an upstanding hooked portion: H2-ofmember I I0 against the ,latching endofthepawliIIIIi. Assuming nowfthat (a cam has been-'rotated'so that the medium r cam portion of the cam contour has raised the .:member, H0,-s,uch difference in cam height with ider I08 slightly further above the-related lug I00.

respectto the-low? cam height will elevate shoulandby' the continued cooperation'of the hooked extension I I2 of the member H0 with; the extremity of the pawl I06, clockwise movement of the pawlzIIIIwvill be stillrestrained. I Y

1 Assuming nowthat-the-high .cam -portionh ;has -positioned .the'member H0 to its maximum height,@the shoulder- I08 ;vvill bestill furtherabove the lug I09and 'themember; H0 is now insuch position that the compression spring III'I. will be ve ffectiveto rock the member H0 clockwise soj'that:

. a; hooked extension II2 will catch over the latch .end of pawl I06, provided that :at' this time the -;pawl I06 is rockedcounterclockwise due] to the concur-rent transmission of an impulse atthe time I=the,membe r- H0 is in its-highest position:,.-];fv

the pawl I is not rocked slightly counterclock- ..wise, =no latching of the member H0 will take 3 place.

Summarizing-whenever the highportion of acamhas-elevated a member-I I0 to the highest position,v such member will be latched 'if the related pawl I 06 isv concurrently rocked to latchingposition, -If.there is no rocking of the pawl I00 at this time, member H0 will not be I latched, and will be subsequently free to move up and, down in accordance with the successive cam contour as the related cam I00 rotates.

TIhe above description has been confined to the operation of the parts under control of the cam. IO0A but it should be noted that identical operations are effectedunder control of the revmaining cams I.00B,-IO0C and IO0D. For this reason, the description of operation need -not be jrepeated forduplicate parts. i

.: est position at the time an impulse is transmitted,

it willbe seen that referring to Fig. 117 each mag- ,net iiI when energized attracts an armature H5 and rocks the sameso as to shift a related connected link] I6 to the left. Depending from the link H6 are four integral extensions H1, each of ,7 which cooperates with the related pawl I 06'. 1 The result of this construction is that the impulse dirented to the magnet 6| will shift the linkI I6 and .rock the four pawls I06 concurrently but only "elevated to itshighest position. Therefore, one

or more of the pawls I06 may be rocked idly at the same timewithout latching the related membersIIO.

To prevent the armature I I5 from sticking-to the core ofithe" magnet 6| due to residual magnetism, it is desirable'to provide means to positively restorethe, link H6 and armature H5 to normal by mechanical means timed with themtation of the cams I 00. To this end there is providedat magnet; knockolfcam I (Fig. la)

- notched as shown] A follower arm .I2l of a clutch release arm I24 cooperatingv with the cam I20 has-a mechanical connection I22 with the link I I6. At the time the magnet 6| is energized it will be observed that-follower arm I2I cooperates with a notch I20d'ofthecam I20. Thereafter, such arm cooperates with the following cam portion l20b to rock arm I2I, link H6 and armature H5, restoring the armature H5 to normal if it should remain attracted to thecore under theabove circumstances. Referring now to Fig 9 it is obvious that; at the time the impulses 9 l are transmitted, pne

or more cams I00 will have their high portions in cooperation with the latching memberss-I I0. At the time the Simpulseis .transmitted the high portions of cams- IO0A and IO0C Will be effective. At the time the 8 impulse is transmitted only cam I.00A will have a high portion effective at this time. For all of the impulses .9-l, thiscondition may be represented by the following table:

Impulses Members 110' Lotched 110A 1 110B, 110C, 110D 110B, 110C It is obvious from the above table that members I I0 are latched-singlyor in predetermined combinations, so that at the termination of the transmission of the impulses 9-1, some of the members H0 will be latched and others will not Ube latched and therefore free tobe positioned according to the contourlof their cams during their subsequent rotation. T It is explained that once a member I I0 is latched it is not free to thereafter move upwardly and downwardly. in

. accordance with the subsequent-cam contour of the related ca'm ,--but remaining unlatched members can do so. A

Cam I 25 through driving means to be subse quently explained, is driven synchronously with the vcams I00,and I20 and cooperates with-the follower extension H8 of arm H3.

Forqthe. purpose of rocking the pawls I06 to latch those members no which areattheirahigh 5 After latching of members H0 iii-predetermined combinations the contour of the cams IO0A, I003, IO0C and IO0D which are thereafter effective will determine'the time in theoperating cycle that the'operating link 63' will be III . 1CflmS,iblltlldllriIIg said .iurther '-rotation:;of the cams the link63will .be. restrained againstinOvefment by one or more of such .unlatched rmem- :loers until .a point .is reached in the operating cyclewhen the cams related to. the unlatched members concurrently present cam operationstof medium height to'the unlatched'members. It will be recalled that since the latchedimembers I II] are so positioned that they do not. restrain the movement'of the link 63 under-the iniluence of the spring H4 and iurther the elevation of any 'unlatched member by a "cam portion of medium height will also unlock the link 83, it is obvious that when both of these conditions exist for four of the latches I I9, the link-63 "is then free to moveunde'r' the influence oi the *spring I I4 and camfIZB. This will be madeclear by reference -toa particular example.

If; 'for example, the QimpulSe'is-SeIected, members I Iii-A and I IGCare latched due to the high.

cam portion 'of their respective cams IiJIlAand I000 and such latching of members NBA and II-GC occurs about 7 of the operating 'cycle when the 9 impulse is transmitted (see'Fig. 9).

At this time the members IItA and IIIlC are latched in the highest positionso that they unlo'ck the operating link53 at such positions. I-Ioweven' came I B8B and 100D in their subsequent rotation continue'to raise and lowerfthe related unlatched members I IB and I IIlDand one or the other of such unlatche'd members IIBB, I'IilD will restrain the operating link 63 from movement until about138 of the operating cycle, at which time both cams II B and IIUD, through their medium high cam portions, shift erelateddatching members @Bfilld IIGD'to unlock the link'fi3. At this time cam follower-e tension H8 :of thearm H3 will cooperate with the .notch I25'b'designated 9 in both Fig. 1b and the-timing diagram .of Fig. 9. link 63 isnow unlocked at iour'points'and the movement of the link to the left is effectedat about 138"by Espring H4. The link will "now operate the clutch release arm 6'! and therefore engage the typeselectine lutch to initiate the i rotation 'Ofthe p t ngwheel fiflfto select the j g p i .type,-9, Z; R and'I.

The type selecting clutch will beiengaged at about -l50 of the operatingcycle and fromthe 'timingdiagram (Fig. 9) the type carryingwheel' 1 -teeth,-an d at about 300"of the operating-cycle the -Ztype will now he in position to print. At 300 of-the operating '-cycle, the speed of rotation'of the'type wheelis decreased to successively present'the type of selected group the order Z,'R, 'I, and such type are selected for printing in accordance whether the pilot'impulse isO, X

I or R.

Reverting now to 'Fig. lb, when-the operating link 63 is moved to'the left to effect theengage-- ment of the type selecting clutch the-camiOl- "lower-extension H8 is in'the'hottom-of the notch "1251)01 the cam diskIZEand-further rotation of thecam 'IZ-S' in a clockwise direction will, through'the-following inclined cam portion I250,

cooperate with the ca'miollower extension M8 to positively restore the operating 11111163 to the right Without, however, causing theunlatching of 'anylatched member I I0. extra'high cam portion 'I'25d'wil1 shift link 63 to .theright beyond'the Fig.1?) position, and in S0 doing'for thosemembers H9 which'have been latch'ed lug I09 'will'engag-e the shoulder I 23 of the respective member I It! "to rock the same Operating At about 1330* an "512 counterclockwise to unlatching position, spring III'I ;being compressed duringthis operation to rock. the pawl I to normal. position shown in Fig. 1b. :Withrespect-to any unlatched member I II), movement of the: operating link 63 ito'the right .at this; time. .maynalso eiiect movement of such-members I I0 but the operation iOf SU Ch lS ineffective.

lIt'is desirable to. provide means' to. insure that :thesclutch' release armst615areat their normal position and will remain/so when engage'd by I .theextremity :ofithe clutchi'pawls I6 to u'nlatch the latter'from the ratchetiteethGS. Such'means .now to be described: is. independent of'the springs I9. iReferringtoiFig.Tlbzthere is pivoted' o'n'a shaft I 28 a'plate" which ih'asifixedithereto s-racomb plate consisting .of .1 pring formed tifinger's I29 which bear'against the lowerextensions 65' of the clutch release arms Bl. Attached to'sh'aift I28 is 20 :era'ting Witha cam :I32 secured toe-drive shaft a followercarm I30 carrying a roller I-3I, coop- .I43. FromFig. 9iit will'beseen that ai'cam i ise I32a .op'e'ratiVeat about 306" "of the operating cycle is efiective' to cooperate with the -fo1lo'w'er .1 roller I3 I to .rock the shaft= I 28 counterclockwise,

:pressing the spring fingers I29 against the related extensions 65 of' the "clutch "relea'se arms 61; positively retracting them to :thenormal positionshowniin'Fig. Ia.- :Thus; -itis insur'ed that clutch release arms 61 will be 'i'n'such' -position .thatthey will be inthe :path of the free ends of'the clutch pawls lfi to move them to unclutching positions.

A low portion I.32'b"of -suchcam I 32'is"eifecstive to'enable the follower arm I 30 to be rocked by a spring I133 to cdoperate qwith'such lowporti0n I 32b which releases the spring "pressure "on "the clutch release arm' BI to *free the latter for rockin'g to engage the type 'Lse'lecting "clutch. Upon transmission or *such 0-, X, "R I impulses through circuits to be described, the second enarmature IIE an'd shifts link I I6.

ergization of the mag-net SI againattracts its The la-tter thereupon "rocks-the clutch release *arnr I25 to -'un1atch the 'clutch' release arm 88fo'f the "printthereupon rocks the' clutch release arm 1 24 t0 Figs. la and '9) er cam IZflcooperates with -the cam follower extension I2-I -'so--as 'not to restrain the rocking of clutch release arm I24. When the'clutch release arm 88 is' unlatche'd' a depending extension I21 moves in' a clearanceportion I26 Ofsaid'armIZ I. "Camdisk 83'will'nowrotate crate with clutchrelease arm 88 to permit its rocking to engage the printing'clutch. After the transmission of the 0, 'X, R impulses the 'cam' rise I3Ic-df cam I37 will'function to positively're- 'tractthe clutch release arm "88 to normal position to cause disengagement of the clutch'release pawl '81 after a complete revolution of the printing clutch. 'At the termination of'the operating cycle; a cam rise I-20d of cam I20fun'ctions to rock the clutch release arm I24 clock- Wise to again position it beneaththeextension It will be recognized'.from this tl-l3y such driving means the cams [68D and I32 are driven synchronously. Re e ri to Fi 3 ea 4 ha rc t. with; a gear I50 which, through-anidler gear I5I, drives a gear I52 attachedto the shaftgI53' 'to which the camI25is secured. w

' Gear I50 alsozmeshesv withargear l54 secured to' a shaft I55 to which shaft the cam; I2 I)..is

secured. t i

' numeral and alphabet characters,

1-I35 of the clutch release ,7 arm 88, which previously has been elevated to the position shown in Fig. la. The cam rise I20d alsoshiftslink I I6 to restore armature H5 to normal if it should stick to the core of magnet 6I.

While the operation of themachine has'been described in connection with the selection offth'e group of type under control of the 9 impulse the Mechan- I .7. t i CamslOOat 1 Members 110 real 1 r P Latchcd Im tmlse gg g g I 1 Degrees 110A; 1100 138. 10013. 100D 110A a 153 10013, 1000, 100D 110B, 110C, 100D 168 100A 110B, 110C 183 100A, 100D 110B, 110D 198 100A,-1000 110C, 110D 213 v100 A 1103 228 100A, 1000. 100D 1100 243 -l0OA,100B, 100D 110D 258 '100A, 10013, 1000 I tablethat the concurrent position oflcams I09 at a medium height cam portion for those cams which have not previously. latched members II II) will, determine the time the mechanical impulse is transmitted' The machine includes .a driving" means driven by the shaft 22 for rotating 'theeamsmoA; IODB, H100 and IIIDD, I20, I25, I32, and I31 in syn- .chronousrelationship and such cams are driven, one, .completerevolution for each operatingcycle.

. The drivingjmeans for driving cams; IIlOA, IIJOB,

188C and IODD will now be described. sSec'uredItO shaft 22 is a gear I40 .(Fig. 3) which through a gear I4I,tdrives a gear I42 secured to thefdrive shaft I43 for the cam IIIOD and cam I32. shaft 22 is extended, as shown in Fig.5, todirectly drive the cam IUIJC; Referring to Fig. 3, gear., ;I40, through a gear I44, drives a gear I45 secured: to the drive shaft I46 for cam IIIUB. Gear I45 t through an idler gear- I41 drives a gear I48 secured ,tothe drive shaft I49 for the ;cam IUQA. mag cian, moo,

Also referring to Fig. 3 to drive shaft ,38 there is secured a gear I56 which meshes with a larger gear I51 secured to a shaft I58; to which shaft thecam I31 issecured. I

Thus, through the intergearinglast described,

I the operating cams I20, 'I25-and-I31 are driven synchronously with theoperating cams 100A,

JOB, "C and IUUD.

' r Wiring!diagram Theoperationof the machine will now be explained in connection with the wiring diagram of Figs. 8a and 8b and anlexemplary setup will be described to show the manner of printing, by the printing mechanism previously described,

Power is supplied by line wires I60 aha I6I. EM refers to an emitter of a well known type t which is adapted; during each cycle of operation ble thereiii:

of thedigits :l-9 andtthe zone impulses O', -X, B,

said impulses having the timing shown inrFi'g. 9. In 'details of construction of emitter EM there is secured-to 'the'main drive shaft 2'2' a double brush of which brush I63 makes contact with the digit segments 9-1 O, X, R in succession during the timethe other brush I64 makes contact with an arcuate segment I65which has af-connection "I66 to the'line side I68. Shaft 22 is a continually rotating shaft; which rotates in both item' entering and -total taking cycles in order that selected f'character printing' may he irectea'in either item or-total printing operations, or both, as is desirable; T From the segments 9-1 there are nine wire connections I61 which terminate at a correspond- :i'ng'nu'mber of exlt plug hubs or sockets I68 which are shown as single hubs but may be dual or triple plug hubs for multiple plugging operations. Hence, it is evident that the emitter EM transmits digit representing impulses to the plug hubs I 68 and in accordance withthe plug connections made from the digit Plug hubs I68 to the pr'int controymagnets 6I several orders of the latter ay be energized at" differential times't'o select corresponding numeraltype l tive norm'ally'closed transfercontacted-160i he" RIZ relay, the associated controlm'agnetWI, 'toth line sideqisi 'j I v jlf sofdesir'ed plug connections may be made directly between the plug hubs I68fand I69 so that selected character printing can be carried. out for-each item ortotal printing cycle of operation or e it r M b t p bl t causesuch' character printing atselected operation'sof the" machine which, in the instant case, fl selected by the R5'relay. Said relay, whenenergizedisadapted'to close a group of-relay contacts 1'42, thereby'connecting each'plug socket v I16 with a related plug socket I1I.' When relay 115 s used to call character printing operations at selected times, plug connections are made 'from plug hubs I 68 toplug hubs I1-0andplugconnectionsf' are made from plug hubs 'I1I to plug .ih' bs .59m F r gq t s edies r 'shqw r-j etyeen u u I 68 a i lan t 113 between plugh i bs fll a lfifl for'effectin printing of the characters 1, 3, l'bn the sheet. It is evidentfthat 'yvith such'f plugging the EM emitter will transmit differentiallytimed impulses 4,13, 2,-1v to thecontrol magnetsi6 I of four columns and the printingmechanismwill operate to printthe digits -4321' upon the sheet. Of course, by means of suitable plug connections from any of the plug hubs I68 the digits to be printed can bevaried and when so connected, repeated printing of the digits will be eflected for each operae tion of themachine; or an-operation which is selected by the R5 relay. The manner in which the R5 relay-is energized-to *s electively'call the I printing operations-will be'eXplained later.

The energizing circuit for energizing each print control magnet filftaking for eir'amplethe selection ofl'the digit 4 for printing, is from the lineside 166, Wire I66, segment I65,"b'rush I64, brush I6 3jthe' 4 digit segment, related wire, I61, the plug hub I 68 designated 4, plug connection 1 I12, plug hub I16,fthe R5 9 relay contacts now closed,-plug hub I1I, plug connection I13, plug huh I 69, RI2'6 relay contacts now normal; print control ma'gnetfil, to the line side I6.I;,; i

It was explained that printing of the selected numeral :character is effected- .by transmitting a second- :impulse to the ';.print control magnet -6I atthe N impulse time, or; about 185 :ofthemachine cycle. To transmit the second- N print effecting, impulse to the control magnetfil, the 'following'-.circuit is provided: .Before the N im- :pulse-time,-at aboutl180,-CR6 cam contacts close *so astd pick up, by'an'obvious circuit, the RIZ wrela-y which transfers'its 1-10. relay contacts and :holds such contacts transferred at the time the -'-CR2 icam contacts .close at the N impulse time. .The :impulsecircuitfor transmission -of-.the Nim- .pulse is from. the line side 16!], through :CRZ cam; contacts, 'wire .I I4, thenc "through there- ..spective -1-1-0 relay-contacts f RI-2 relay, the- *print controlgmagnetfiIto-therlineside I61. This impulse.causesprintingfromtheselectednumeral digit.- x

. :For alphabet character printing it will bere- .-called thatimpulses are transmitted in :combi- -,-.nation,1that..is, in'addition to oneof the digit .impulsesl-Q therseleotedzone impulse O, X,.R.is alsotransmitted to the control magnet :GI. To zthis-endfrom the digit segments-O, X, R of EM emitter there are three .wire connections I15: 1

which are connected to therespective-R line. I16, the-respective X line I'll andlthe respective 0 line I- I 8.. .For selecting the desired alphabet characters for printing there are-three rows of .nine

lplug, hubs or sockets. Row. I80 comprises nine :plughubs for letters of-the-alphabetAeL rowISI of nine plug hubs for printing letters J-R, and the .third row of nine plug hubs 1.82; for printing the remaining letters of the alphabet .S-Z, and'if so desired, the symbol Therow of plug hubs 1 "close during thetimeofthe transmission of the" O,;X, R zone impulses by emitter EM, thereby -energizingthe RI, R2,- R3 relays by an obvious circuit shown in Fig..8b. R3 .relay transfersits 1- -9 contacts, thus causing thezone impulse O to ;be...=tr'ansrnitted to the series. of ,plug hubs I82. .RZ relay transfers its 1-9contacts to cause the rXzone impulseto betrans'ferred to "the series of fplugQhubsJBI andRI relay causesthe R impulse lto be transmittedto the plughubs I89. .Thus, thedesired combinations of impulses are transmittedto-the-alphabet plughubs I80, IBI and I82.

..1=ive.,plug. connections I83, I84, I85, I 86 and -l 8lIcarefshown, by wayof example, from the four alphabet ,plughubsdesignated Totalto plug hubs IIIlisothat-upon .energization-of the R relay when taking a .total, the. circuit will be extended -through therespective relaycontaots, plug connections 'I-88, .to plug hubs I69, the normally closed .i-trans'ferecontacts of the R4 relay, to the print control-magnets GI. Thus, the selected 0, X, R vimpulse will be transmitted to the print control pmagnetstl to select the-desired alphabet character :of the,group selected by the previous digit impulse 9-.1. sshown are merely exemplary andby plug connections from the series of plugv hubs I 89, I8I and .I82 alphabetprinting maybe effected to print other words, abbreviations, etc. Not only may desired. digit andsalphabet. printing be carried out Of course, the plug connections 23 t fi symbols .;may also .If-so desired the machine may be'arranged'so that by employment of the printing mechanism shown in'the patent to R. E. Page, No. 2,438,071, dated March 16, 1948, combinations-of digit impulses may be used to print the symbolsprinted by theJprinting mechanism of this patent. .This will additionally extendthe usefulness of the present invention when it is soymodified .to secure this result. i w

It is desiralbleto call the character selecting emitterinto operation only'during selected machine. cycles and to illustrate the manner of carrying out this feature of the invention there will be described the meansifor calling this device into operation .during a total taking operation. When the present invention is embodiedin record controlled accounting machines such total taking operations are automatically initiated by the group controlmeans which will now :be described. In othertypes of machines the calling in'of the printing control device into operation may be effected by. other means. 'eferring ,now to Figs. 8a and 8b it will be recalled that the character selecting emitter.EM is called into operation as a result of the energization of the R5 relay'and herein is energized under control'of the group controlmeans. The change in thegroup number is detected by the comparison 16f. perforations analyzed at the UB 'or upper reading station withperforations.on another'card analyzed at the same time by theLBorjlower brush reading station. In each' stationreference circuit breaker'contacts which connect line side jIGIl withfiaoh'jcontact r011 I92. From the brushes I93 at the upper reading station'- there are three plug connections I94 which terminate at plug hubs I95 which are connected to the respective pickup coil of the R6, R1 and R8 relays which "are, connected by wire I96 to the'lineside IIiI. Similar plug connections- I 91 are made forthe lowerreading station so as to energize the pickup coils of the-Rania and RH relays. A hold circuit is effectedfor each of 'therelays R6 toRI I,

through the respective 71. contacts; back through the CR3 cirouitbr'eaker contacts to the line side It is evident that upona'concurrent analysis "of the corresponding holes in the corresponding column of the two cards the R6 and R9 relays will be concurrently energized, the R1 an'dRIIl relays and the R8 and RH relays. Upon dissimilarity in perforations in the same column'one of the pair of relays, such as RBand'RB, will be energized at difierent times.

The comparing circuit is identical for thethree orders of the group control shown herein and consists of a circuit network of the b transfer contacts. For example, the R9 and R9 relays have their b transfercontacts so interconnected that upon concurrent energizationof both relays the normal closedcircuittbetween a wire I 98 which is iconnctedto oneside of the CR3 cam contacts and agplug'hub'I99'will remain open as itis normally. 11f,- however,on ly. one of the .b. transfer "contacts istransferredgdue toa. dissimilarity in card holes, the circuit. between wire I98 andplug hubll99 willbe'lclosed.

Eor .comparisonby three .ordersthe three plug .i 'sockets. are. interconnected by ,plug connec- 17 tions 200 and by means of plug connections 20l the closure of any of the t ree comparing circuits will complete a circuit' from the line I 60, through CR3 cam contacts, 'wire I98, R61) relay contacts now transferred, by way of example, R91) relay contacts now normali' plug' hub I99, plug connection 20!, plug hub 2 02, the pickup coil of the R4 relay and wire 203 to the line side [6 I. A hold circuit for R4 relay maintained through the h relay contacts and the CR4 cam contacts. Whenever the R4 relay is energized and held energized it will close its contacts R422 to thereby complete a circuit from the line side I60, wire 204, CR1 cam contacts, through R lb relay contacts, pickup coil of R relay to line side IBI. The hold circuit for R5 is maintained by the h relay contacts, CR5 cam contacts to the line side I60.

From Fig. 9 it will be evident that CR5 cam contacts hold the R5 relay energized to the, end of the cycle and during the'iirst part of the next cycle, which is a total takirigcycle, up to'about 180, during which time all ofthe impulses are transmitted by the emitter EM.

The R5 relay will close its 1-12 relay contacts, thereby rendering the EM character selecting impulse emitter eifective for operation to select the characters according to the previously made plug connections.

The above is merely one of the many types of selecting means which may be provided for calling the character selecting device into operation at desired times.

While there have been shown and described and pointed out the fundamental novel features of the invention, it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims.

What is claimed is:

l. A control device for printing alphabet type and digit type, said digit type being selected according to a numerical code, and said alphabet type according to an alphabetical code, alphabet type representing impulse exit sockets, digit type representing impulse exit sockets, impulse emitting means, a circuit network for causing said impulse emitting means to transmit impulses according to said numerical code to said digit type representing impulse exit sockets, and to transmit combinations of impulses according to said alphabetical code to said alphabet type representing impulse exit sockets, a printing mechanism of several orders, each comprising alphabet type and numeral type, a single control element for each order, means controlled by said element for selecting digit type in response to impulses according to said numerical code, means controlled by said element for selecting alphabet type in response to combinations of impulses according to the alphabetical code, and means comprising plug connections between the alphabet type representing impulse exit plug sockets and the digit type impulse exit sockets and the several orders of said elements to control the printing mechanism to print desired digit and alphabet type.

2. A control device for a printing mechanism having digit type and alphabet type which are selected according to a predetermined numerical and alphabetical code, respectively, impulse emitting means operable in a cycle of operation of said printing mechanism comprising means to g 7 18 l. r emit impulses which, according to a codeselect the digit type, and zone impulses which in combination with said impulses select the alphabet type according to a code, digit impulse exit plug sockets, alphabet representingimpulse exit'plug sockets, a circuit network from said im'pulse emitting means for transmitting said" first named impulses to said digit impulse exit pl'ug sockets to select digit type according to the numerical code. and for transmitting'said first named impulses'to said alphabet type representing impulseexit plug sockets according to the alphabet code, and selector means for, connecting j the zone impulse emitting means to said alphabetrepresenting impulse exit plug sockets to direct zone impulses thereto to select alphabet type according to the alphabet code. V, 1

3. A control device for a printing mechanism having digit'type and alphabetv typ'efsaid digit type being selected by digit representing impulses, and the alphabet type bysaid digitjimpulses and zone impulses according" to a predetermined alphabetic code, an impulse emitter operable in a cycle of operation of said printing mechanism comprising a rotatable element movable over digit segments in succession to emit digit impulses, and over zone segments to emit zone impulses, digit type representing impulse exit plug sockets, alphabet type representing impulse exit plug sockets, a circuit network consisting of wires extending from said digit segments for transmitting said digit. impulses to correspondingly designated digit impulse exit plug sockets, and for transmitting said digit impulses to said alphabet type representing impulse exit sockets according to the alphabetical code, and selector means 0perable during the transmission of said zone impulses to connect according to the alphabet code the alphabet type representing exit sockets to the zone segments 0, X, R to transmit said zone impulses to said alphabet type representing impulse exit sockets.

4. In a cyclically operable printing machine, a plural order printing mechanism having for each order alphabet type A-Z and digit type 1-9, a printing control magnet for each order, a plurality of alphabet type selecting means A-Z, one for each of the letters A-Z, a plurality of digit type selecting means 1-9, one for each of the digits 1-9, repeatedly operated source means of electrical impulses and operable for each cycle of the operation of the machine, means for connecting said source means to said alphabet type selecting means in such manner that to each of said alphabet type selecting means different combinations of electrical impulses are transmitted which will select alphabet type A-Z and for connecting said source means to said digit type selecting means in such manner that to each of said digit type selecting means digit representing electrical impulses are transmitted which will select digit type 1-9, and electrical connections made between the printing control magnets of the several orders of the printing mechanism and selected alphabet and digit type selecting means for causing electrical impulses to be transmitted from said selected alphabet and digit type selecting means to said printing control magnets to cause the latter to control said printing mechanism to print in each cycle of machine operation the desired digit and alphabet characters according to the electrical connections made.

5. In a cyclically operable printing machine, a plural order printing mechanism having for each order alphabet type A-Z selected by combinations l I v 1 or el ctric l mp lses and git ype 1 9 selected :by single-elect ical mpuls s a p inting contr l magnet for each order, plug sockets each con-. nected to an associated printing control magnet, a plurality of exit impulse plug sockets represent! ing alphabet type A-Z, -a plurality of exit impulse plug sockets representing digit type 159, repeatedly Operated source means of electrical mpu s s and ope able cr each cyc e of t e 10-- eratlon of the machine, means for connecting said source means of electrical impulses to exit plug sockets A,Z in such manner that coded combin tions of electrical impulses are. repe edly tra m tted to said e t. impulse lu so kets or sel ti g the a pha et ype. A Z. and said sour means to sa d x t l sockets 1-9 in s c manner that single electrical impulses are repeatedly transmitted o sa d exit imp lse p us sockets for selecting the digit type 1-9, and means comprisns variably ade el ct cal plug conn c s bet en the pl g soc ets onne t d o t e printin control magnets of the several orders of the pri ing mecha ism and said s lect d lp a e a d digit ype ex t impulse p ug sockets to ca se im ulses from selected alpha e and di t t pe exit i p ls p ug k ts to be tr smitted t sa rint control-magnets to select the desired alphabet ancl'digit type for each cycle of machine 0peraticn; I s r EDWAR J. ABE DA- RALPH LP E. HORACE B A'I I REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

